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Comparing jsr166/src/test/tck/AtomicIntegerFieldUpdaterTest.java (file contents):
Revision 1.13 by jsr166, Tue Nov 17 03:12:51 2009 UTC vs.
Revision 1.22 by jsr166, Fri Jun 10 20:01:21 2011 UTC

#	Line 1 | Line 1
1		/*
2		* Written by Doug Lea with assistance from members of JCP JSR-166
3		* Expert Group and released to the public domain, as explained at
4	<	* http://creativecommons.org/licenses/publicdomain
4	>	* http://creativecommons.org/publicdomain/zero/1.0/
5		* Other contributors include Andrew Wright, Jeffrey Hayes,
6		* Pat Fisher, Mike Judd.
7		*/
8
9	–	import java.util.concurrent.atomic.*;
9		import junit.framework.*;
10	<	import java.util.*;
10	>	import java.util.concurrent.atomic.AtomicIntegerFieldUpdater;
11
12		public class AtomicIntegerFieldUpdaterTest extends JSR166TestCase {
13		volatile int x = 0;
#	Line 30 | Line 29 | public class AtomicIntegerFieldUpdaterTe
29		a = AtomicIntegerFieldUpdater.newUpdater
30		(AtomicIntegerFieldUpdaterTest.class, "y");
31		shouldThrow();
32	<	}
34	<	catch (RuntimeException rt) {}
32	>	} catch (RuntimeException success) {}
33		}
34
35		/**
#	Line 43 | Line 41 | public class AtomicIntegerFieldUpdaterTe
41		a = AtomicIntegerFieldUpdater.newUpdater
42		(AtomicIntegerFieldUpdaterTest.class, "z");
43		shouldThrow();
44	<	}
47	<	catch (RuntimeException rt) {}
44	>	} catch (RuntimeException success) {}
45		}
46
47		/**
#	Line 56 | Line 53 | public class AtomicIntegerFieldUpdaterTe
53		a = AtomicIntegerFieldUpdater.newUpdater
54		(AtomicIntegerFieldUpdaterTest.class, "w");
55		shouldThrow();
56	<	}
60	<	catch (RuntimeException rt) {}
56	>	} catch (RuntimeException success) {}
57		}
58
59		/**
60	<	*  get returns the last value set or assigned
60	>	* get returns the last value set or assigned
61		*/
62		public void testGetSet() {
63		AtomicIntegerFieldUpdater<AtomicIntegerFieldUpdaterTest> a;
#	Line 71 | Line 67 | public class AtomicIntegerFieldUpdaterTe
67		return;
68		}
69		x = 1;
70	<	assertEquals(1,a.get(this));
71	<	a.set(this,2);
72	<	assertEquals(2,a.get(this));
73	<	a.set(this,-3);
74	<	assertEquals(-3,a.get(this));
79	<
70	>	assertEquals(1, a.get(this));
71	>	a.set(this, 2);
72	>	assertEquals(2, a.get(this));
73	>	a.set(this, -3);
74	>	assertEquals(-3, a.get(this));
75		}
76
77		/**
78	<	*  get returns the last value lazySet by same thread
78	>	* get returns the last value lazySet by same thread
79		*/
80		public void testGetLazySet() {
81		AtomicIntegerFieldUpdater<AtomicIntegerFieldUpdaterTest> a;
#	Line 90 | Line 85 | public class AtomicIntegerFieldUpdaterTe
85		return;
86		}
87		x = 1;
88	<	assertEquals(1,a.get(this));
89	<	a.lazySet(this,2);
90	<	assertEquals(2,a.get(this));
91	<	a.lazySet(this,-3);
92	<	assertEquals(-3,a.get(this));
98	<
88	>	assertEquals(1, a.get(this));
89	>	a.lazySet(this, 2);
90	>	assertEquals(2, a.get(this));
91	>	a.lazySet(this, -3);
92	>	assertEquals(-3, a.get(this));
93		}
94
95		/**
#	Line 109 | Line 103 | public class AtomicIntegerFieldUpdaterTe
103		return;
104		}
105		x = 1;
106	<	assertTrue(a.compareAndSet(this,1,2));
107	<	assertTrue(a.compareAndSet(this,2,-4));
108	<	assertEquals(-4,a.get(this));
109	<	assertFalse(a.compareAndSet(this,-5,7));
110	<	assertFalse((7 == a.get(this)));
111	<	assertTrue(a.compareAndSet(this,-4,7));
112	<	assertEquals(7,a.get(this));
106	>	assertTrue(a.compareAndSet(this, 1, 2));
107	>	assertTrue(a.compareAndSet(this, 2, -4));
108	>	assertEquals(-4, a.get(this));
109	>	assertFalse(a.compareAndSet(this, -5, 7));
110	>	assertEquals(-4, a.get(this));
111	>	assertTrue(a.compareAndSet(this, -4, 7));
112	>	assertEquals(7, a.get(this));
113		}
114
121	–
115		/**
116		* compareAndSet in one thread enables another waiting for value
117		* to succeed
#	Line 132 | Line 125 | public class AtomicIntegerFieldUpdaterTe
125		return;
126		}
127
128	<	Thread t = new Thread(new Runnable() {
129	<	public void run() {
130	<	while (!a.compareAndSet(AtomicIntegerFieldUpdaterTest.this, 2, 3)) Thread.yield();
131	<	}});
128	>	Thread t = new Thread(new CheckedRunnable() {
129	>	public void realRun() {
130	>	while (!a.compareAndSet(AtomicIntegerFieldUpdaterTest.this, 2, 3))
131	>	Thread.yield();
132	>	}});
133
134		t.start();
135		assertTrue(a.compareAndSet(this, 1, 2));
#	Line 156 | Line 150 | public class AtomicIntegerFieldUpdaterTe
150		return;
151		}
152		x = 1;
153	<	while (!a.weakCompareAndSet(this,1,2));
154	<	while (!a.weakCompareAndSet(this,2,-4));
155	<	assertEquals(-4,a.get(this));
156	<	while (!a.weakCompareAndSet(this,-4,7));
157	<	assertEquals(7,a.get(this));
153	>	while (!a.weakCompareAndSet(this, 1, 2));
154	>	while (!a.weakCompareAndSet(this, 2, -4));
155	>	assertEquals(-4, a.get(this));
156	>	while (!a.weakCompareAndSet(this, -4, 7));
157	>	assertEquals(7, a.get(this));
158		}
159
160		/**
161	<	*  getAndSet returns previous value and sets to given value
161	>	* getAndSet returns previous value and sets to given value
162		*/
163		public void testGetAndSet() {
164		AtomicIntegerFieldUpdater<AtomicIntegerFieldUpdaterTest> a;
#	Line 174 | Line 168 | public class AtomicIntegerFieldUpdaterTe
168		return;
169		}
170		x = 1;
171	<	assertEquals(1,a.getAndSet(this, 0));
172	<	assertEquals(0,a.getAndSet(this,-10));
173	<	assertEquals(-10,a.getAndSet(this,1));
171	>	assertEquals(1, a.getAndSet(this, 0));
172	>	assertEquals(0, a.getAndSet(this, -10));
173	>	assertEquals(-10, a.getAndSet(this, 1));
174		}
175
176		/**
#	Line 190 | Line 184 | public class AtomicIntegerFieldUpdaterTe
184		return;
185		}
186		x = 1;
187	<	assertEquals(1,a.getAndAdd(this,2));
188	<	assertEquals(3,a.get(this));
189	<	assertEquals(3,a.getAndAdd(this,-4));
190	<	assertEquals(-1,a.get(this));
187	>	assertEquals(1, a.getAndAdd(this, 2));
188	>	assertEquals(3, a.get(this));
189	>	assertEquals(3, a.getAndAdd(this, -4));
190	>	assertEquals(-1, a.get(this));
191		}
192
193		/**
#	Line 207 | Line 201 | public class AtomicIntegerFieldUpdaterTe
201		return;
202		}
203		x = 1;
204	<	assertEquals(1,a.getAndDecrement(this));
205	<	assertEquals(0,a.getAndDecrement(this));
206	<	assertEquals(-1,a.getAndDecrement(this));
204	>	assertEquals(1, a.getAndDecrement(this));
205	>	assertEquals(0, a.getAndDecrement(this));
206	>	assertEquals(-1, a.getAndDecrement(this));
207		}
208
209		/**
#	Line 223 | Line 217 | public class AtomicIntegerFieldUpdaterTe
217		return;
218		}
219		x = 1;
220	<	assertEquals(1,a.getAndIncrement(this));
221	<	assertEquals(2,a.get(this));
222	<	a.set(this,-2);
223	<	assertEquals(-2,a.getAndIncrement(this));
224	<	assertEquals(-1,a.getAndIncrement(this));
225	<	assertEquals(0,a.getAndIncrement(this));
226	<	assertEquals(1,a.get(this));
220	>	assertEquals(1, a.getAndIncrement(this));
221	>	assertEquals(2, a.get(this));
222	>	a.set(this, -2);
223	>	assertEquals(-2, a.getAndIncrement(this));
224	>	assertEquals(-1, a.getAndIncrement(this));
225	>	assertEquals(0, a.getAndIncrement(this));
226	>	assertEquals(1, a.get(this));
227		}
228
229		/**
#	Line 243 | Line 237 | public class AtomicIntegerFieldUpdaterTe
237		return;
238		}
239		x = 1;
240	<	assertEquals(3,a.addAndGet(this,2));
241	<	assertEquals(3,a.get(this));
242	<	assertEquals(-1,a.addAndGet(this,-4));
243	<	assertEquals(-1,a.get(this));
240	>	assertEquals(3, a.addAndGet(this, 2));
241	>	assertEquals(3, a.get(this));
242	>	assertEquals(-1, a.addAndGet(this, -4));
243	>	assertEquals(-1, a.get(this));
244		}
245
246		/**
#	Line 260 | Line 254 | public class AtomicIntegerFieldUpdaterTe
254		return;
255		}
256		x = 1;
257	<	assertEquals(0,a.decrementAndGet(this));
258	<	assertEquals(-1,a.decrementAndGet(this));
259	<	assertEquals(-2,a.decrementAndGet(this));
260	<	assertEquals(-2,a.get(this));
257	>	assertEquals(0, a.decrementAndGet(this));
258	>	assertEquals(-1, a.decrementAndGet(this));
259	>	assertEquals(-2, a.decrementAndGet(this));
260	>	assertEquals(-2, a.get(this));
261		}
262
263		/**
#	Line 277 | Line 271 | public class AtomicIntegerFieldUpdaterTe
271		return;
272		}
273		x = 1;
274	<	assertEquals(2,a.incrementAndGet(this));
275	<	assertEquals(2,a.get(this));
276	<	a.set(this,-2);
277	<	assertEquals(-1,a.incrementAndGet(this));
278	<	assertEquals(0,a.incrementAndGet(this));
279	<	assertEquals(1,a.incrementAndGet(this));
280	<	assertEquals(1,a.get(this));
274	>	assertEquals(2, a.incrementAndGet(this));
275	>	assertEquals(2, a.get(this));
276	>	a.set(this, -2);
277	>	assertEquals(-1, a.incrementAndGet(this));
278	>	assertEquals(0, a.incrementAndGet(this));
279	>	assertEquals(1, a.incrementAndGet(this));
280	>	assertEquals(1, a.get(this));
281		}
282
283		}

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